If you use fresh tomatoes you need to scald them and remove the skins, start with doing just that. Set aside catching all the juices, chop tomatoes, set aside. Discard the skins. Season the flour with salt and pepper, roll the chicken in the flour until covered from all sides. Heat oil, brown chicken from all sides. Turn down heat, add chopped garlic, brown slightly. Add pepper and chorizo, cook for about 5 minutes. Remove chicken from pan set aside.